Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /app/web/vendor/cboden/ratchet/tests/unit/WebSocket/Version/Hixie76Test.php:10 Stack trace: #0 {main} thrown in /app/web/vendor/cboden/ratchet/tests/unit/WebSocket/Version/Hixie76Test.php on line 10